报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2017-12-31,2016-12-31, 总资产利润率(%),8.58,5.57,2.55,12.13,9.68,10.25,4.01,22.41,--,14.57,--,33.95,36.76,40.3, 主营业务利润率(%),43.67,45.19,44.52,50.29,51.33,51.25,48.38,50.35,50.22,50.79,47.79,51.81,52.98,53.26, 总资产净利润率(%),8.93,5.65,2.6,14.65,11.47,10.26,4.04,25.92,--,15.05,--,42.03,46.16,40.3, 成本费用利润率(%),59.51,66.5,76.02,72.37,77.61,88.04,86.74,82.06,84.4,84.35,57.91,84.46,64.91,74.83, 营业利润率(%),36.12,39.82,44.33,40.47,42.41,45.63,47.48,43,43.08,42.41,35.98,43.62,37.91,39.42, 主营业务成本率(%),55.8,54.29,54.75,48.73,47.71,47.81,50.46,48.45,48.44,47.79,50.52,47.02,45.76,45.6, 销售净利率(%),32.19,34.23,39.4,36.12,37.18,39.98,41.54,39.21,39.9,40.36,30.23,38.3,31.88,36.52, 净资产收益率(%),9.81,6.31,2.86,13.4,10.52,11.92,5.08,29.37,--,17.44,--,46.11,57.64,69.07, 股本报酬率(%),28.35,39.71,8.1,56.61,28.22,--,--,--,--,--,--,--,--,--, 净资产报酬率(%),9.78,14.17,2.84,20.39,10.51,11.9,15.03,39.15,--,17.46,--,46.08,56.72,66.97, 资产报酬率(%),8.58,12.59,2.55,18.48,9.68,10.25,11.85,29.76,--,14.57,--,33.95,36.76,40.3, 销售毛利率(%),--,--,--,--,--,--,--,--,--,--,--,52.98,54.24,54.4, 三项费用比重(%),4.36,5.06,2.82,7.5,6.38,3.7,3.5,5.1,4.27,5.36,9.94,4.31,11.42,7.62, 非主营比重(%),2.98,3.55,1.98,7.93,4.62,5.18,6.83,6.64,7.75,9.98,1.06,3.79,-11.37,22.41, 主营利润比重(%),120.92,113.5,100.46,121.49,120.14,110.98,101.22,112.07,110.09,110.34,132.78,116.85,139.7,130.95,